Combined door hinge and check



Oct. 6, 1925.

1,556,204 A. M. COHEN COI IBINED DOOR HINGP- AND CHECK File March 31, 1925 Fig? 23 Fig 4 INVENTOR Abrahagg M. Cohen ATTORNEY Patented Oct. 6, 1925,

UNITED STATES .ABRAHAM M. COHEN, OF YORK, N. Y.

COMBINED DOOR HINGE AND CHECK.

Application filed March 31, 1925. Serial No. 19,572.

To all whom it may concern: I 4

Be it known that I, ABRAHAM M. COHEN, va citizen of the United States, residing at the city of New York, in the county and State of New York, have invented certain new and useful Improvements in Combined Door Hinges and Checks, of which the following is a specification.

This invention relates to combined door hinges and checks, and particularly to those types of door checks which are designed to form part of and to be operated by the hinges. Door checks have customarily been made separately from the hinge, as distinct articles. Such checks are expensive,and involve considerable labor in the attachment,

adjustment and maintenance thereof, wherefor they have been used only where a substantial outlay of money is warranted. A check combined with the conventional door hinge in such a manner that it requires no additional labor other than that now required to secure a door hinge in place, which g presents the appearance of the ordinary hinge, and which can be produced at little greater cost than the ordinary hinge, has long been sought.

My invention is intended to fulfill the aboverequirements and contemplates" the checking and closing of a door by means of a spring acting on a tongue of predetere mined shape, which tongue operatesin a cam groove'of peculiar shape'made in the hinge cylinder. In the drawings illustrating the preferred embodiment of my invention, Fig. 1 is a perspective view taken from the side of my improved device partly broken away to show the door closing and checking mechanism.

Fig. 2 is a similar fragmentary view showin the position of the parts when the door is partly opened or closed.

Fig. 3 is a partial vertical section and front elevation of my improved hinge, and Fig. 4 is a horizontal section of the same on the line 44 of Fig. 1, showing the hinge secured in place.

The usual hinge cylinders 10 are provided onrthe jamb leaf 11, the hinge pintel 12 being secured to said cylinders in any suitable manner as by. means of the-'pins-13 preferably passing through said cylinder andsaid pintle, whereby said pintelis maintained stationary together with said jamb leaf. It will be understood that since both ends of my improved hinge are preferably made substantially alike, a description of the upper end will suffice for both, itbeing remembered that the lower part of the lower checking device corresponds to the upper part of the upper device, and vice-versa.

The pintel 12 preferably terminates at both ends thereof in the guides 14 illustrated in. thiscase as being square in cross-section for preventing. rotation of the vertically reciprocating slide 15 mounted thereon. In each of the hinge cylindersv 16 of the door leaf 17 is provided a cam groove of peculiar shape which will be described more fully hereinafter. Operating in said cam (groove and preferably projecting from sai slide is the operating extension 18 on which is the tongue 28 adapted to cooperate with the edges of said cam groove'to close and to, check the door. An opening as 19 of the same cross-sectional shape as that of the uide 14 of the hinge pintel is made in the slide 15, so that said slide may move upwardly against the action of the spring 20or downwardly under the influence of said spring on the guide 14 without turning thereon. 1 The coil spring 20 is arranged with one end thereof abutting against the upper end of the slide 15, the other end of said spring being held in place in any suitable manner as by passing said end through a suitable hole 21 in the guide 14 or by means of a pin 22 passing through said hole. Not only to improve the appearance of my device, but also to prevent the accumulation of dust'and dirt on the spring 20 and on the other moving parts, said parts may be enclosed if desired in a suitablecasing as 23 suitably mounted on and carried by the hinge cylinder 16.

The cam groove in the cylinder 161s so shaped that vertical downward pressure on the left edge 24 thereof (as viewed in Flgs. 1, 2 and 4) causes. said cylinder 16, the door leaf 17, and the door 25 secured tereto to rotate inthe proper direction to "cause said door to close. Said edge'24 is made sufiic1ent- 1y long to allow the spring 20-nearly, but not quite, to close thedoor through the tongue other words, when the lower end 27 of the cam operating tongue 28 reaches the bend 26 of the cam edge 24, the door is still partly open. The lowermost left edge 29 of the cam groove below the bend 26 has a slight inclination away from the door leaf in order to prevent sticking of the tongue 28 in the cam groove either in the opening or in the closing movement of the door. Said tongue 28 is also bent away from the door leaf to allow the end 27 thereof to enter the lowermost part of the cam groove and to allow the cylinder 16 in which said groove is made to gothrough a peculiar movement about to be described. In so far as the right edge 30 of the cam groove is concerned, the shape of the upper part thereof is immaterial, but the lowermost edge 32 thereof is preferably spaced from the left edge portion 29 a suflicie'nt distance to allow the entry therebetween of the tongue end 27 and to further allow a slight horizontal movement of the cylinder 16 relatively to said end 27.

The operation of my improved device is as follows:

Beginning in the closed position of the door illustrated in Fig. 1, the end 27 of the tongue 28 rests at the bottom of the cam groove, (Fig. 1), the right edge 33 of said end 27 being in contactwith the right edge 32 of said groove. As the door is opened the cylinder 16 is rotated in the direction of the arrow of Fig. a, whereby the curve 29 of the groove, is first brought into contact with the left edge of the tongue end 27, after which said end rises along said curve, thereby compressing the spring 20. As the door continues to open the tongue end 27 passes the bend 26 and continues to rise along the edge 24 of the groove until the door is released. As the door isfreed of the opening force the compressed spring 20 acting on the slide 15 forces said slide downwardly along the square guidel l and causes the tongue end 27 to engage the cam edge 24 forcibly, there by rotatin the cylinder 16 in the direction opposite to the arrow of Fig. i and commencing the closing of the door. The closing operation continues until the tongue 27 reaches the bend 26 of the cam groove at the constricted portion of said groove, at which point the cam groove is so shaped as to allow only slight backward but no forward angular movement of the hinge cylinder 16 relatively to the tongue 28. It will be understood that the door gathers momentum after the closing thereof has begun, so that the right edge 33 of the operating tongue end 27 comes in more or less violent contact with the corresponding edge30 of the cam groove (Fig. 2), whereby the movement of the door is momentarily halted and further continuous movement thereof is temporarily prevented. An appreciable interval of time, which may, in some cases, be very small,

elapses before the tongue end 27 can pass to the bottom of the bend 26, and continue its downward movement along the comparatively steep edge 29 of the cam groove, by reason of the frictional contact of the tongue edge 33 and the groove edge 80. This interval is suiiicient to check the door in its movement and thereby prevent the door from slamming shut. After the above described checking operation has taken place, the continued force exerted by the spring 20 causes the tongue end 27 to drop into the bottom of the cam groove, which is of suflicient width to allow a slight additional angular moveient of the hinge cylinder 16. Said movement is designed to be just enough to close the door during the last few inches of the movement thereof Without allowing the door to slam. The above described peculiar shape of the cam groove and of the tongue results in the momentary halting of the door in its movement, whereby the door is always shut without slamming, even though said door is opened through a comparatively small angle, also in causing the checking effect to occur only in the final part of the door movement, and in preventing the parts from jamming or sticking in any position of the door by reason of the fact that sufficient clearance is always provided between the tongue end 27 and the cam groove, so that said tongue end and the cylinder 16 are at all times capable of some relative movement in one direction or the other.

It will be understood that various changes may be made in my device, without departing from the spirit of this invention, such as changes in the form of slide, in the shape of the operating tongue and groove, in the disposition of the enclosing casing, in the number of checks for each hinge, and others falling within the scope of the appended claims, so that I do not wish to be understood as limiting myself to the specific structure shown and described herein.

I claim:

1. In a combined door hinge and check, a stationary, solid hinge pintle, a hinge cylinder rotatably mounted on said pintle and operatively connect-able to a door, ends on said pintle projecting outside of said cylinder, means for preventing relative longitudinal movement of said pintle and said cylinder, a cylindrical cam edge on said cylinder, and a slide mounted for axial reoiprocatory movement only on said ends of said pintle, spring-pressed into engagement with said cam edge for continuously rotating said cylinder to a predetermined position, for checking the rotative movement of said cylinder at said position, and for continuing the rotative movement of said cylinder beyond said position.

2. In a combined door hinge and check, a hinge cylinder, a stationary pintle on til) which said cylinder is mounted for rotative movement only, ends on said pintle projecting beyond said cylinder, means axially slidable on said ends of said pintle engaging said cylinder for intermittently rotating said cylinder, and means for preventing the rela-- tive rotation of said slidable means and said pintle.

3. In a' combined door hinge and check, a stationary hinge pintle, a hinge cylinder rotatable on said pintle, means for preventing relative axial movement of said pintle and said cylinder, an end on said pintle pro-- jecting outside of said cylinder, cam edges extending inwardly from the outer surface of said cylinder, and a vertically reciprocable spring pressed slide on said end of said pintle adapted to coact with said cam edges for closing and for checking a door.

4. In a combined door hinge and check, a door leaf, a hinge cylinder on said leaf, a pair of divergent cam edges extending inwardly from the outer surface of said cylinder, a hinge pintle on which said cylinder is mounted for rotative movement only, a slide mounted for reciprocation on the end of said pintle and spring pressed into engagement with said cam edges, a bend near the extremity of one of said cam edges, a bend on the other of said cam edges, said bends being substantially convex toward each other, and being spaced apart a distance slightly greater than the width of said slide for momentarily checking said slideas said slide reaches said bend, said edges diverging past said bends to allow slight final rotation of said cylinder after said slide has passed said bends.

5. In a combined door hinge and check, a door leaf, a hinge cylinder on said door leaf having a cam groove therein, a jamb leaf, a pintle secured to said jamb leaf, a spring-pressed cam-operating slide independent of and mounted for reciprocation only on said pintle, and curves on the edges of said cam groove forming a constricted portion in said groove for engaging said slide and temporarily checking closing movement of said cylinder frictionally in advance of and near the end of said movement.

6. In a combined door hinge and check, a door leaf, a cam cylinder extending from said leaf, a stationary hinge pintle passing through said cylinder, a spring pressed slide mounted for reciprocation only on said pintle, means on said slide engaging the cam of said cylinder and adapted to continuously close the door leaf until said leaf is almost closed and a bend on said cam coacting with said cam engaging means for temporarily checking said leaf near the end of the closing movement thereof.

7. In a combined door hinge and check, a hinge cylinder, a cam on said cylinder, a

pair of divergent edges on said cam, and a spring pressed tongue bent out of parallel tothe-axis of said cylinder coacting with said cam edges, for rotating said cylinder to apredetermined position, for checking said cylinder at said position, and for continuing the rotation of said cylinder pastsaid position.

8. Means for swingably supporting and for closing a door gently comprising a rotatable hinge cylinder, a stationary pintle carrying said cylinder, a cam formed in said cylinder, a constricted portion on said cam, and a cam operating member independent of and slidable on said pintle of slightly less width than that of said constricted portion of said cam.

9. In a combined door hinge and check, a rotatable hinge cylinder, a door operating member, a cylindrical cam edge adapted to be engaged by said operating member extending inwardly from the outer surface of said cylinder, a substantially vertical portion on said edge for allowing substantially no rotation of said cylinder while allowing movement of said member, and a second cam edge diverging from and spaced from the'first mentioned cam edge, said cam edges being spaced apart a distance slightly greater than the width of said member for stopping said member temporarily.

10. In a combined door hinge and check, a door leaf, a pintle, a hinge cylinder on said door leaf rotatably mounted onsaid pintle, a cylindrical cam edge in said cylinder, a spring pressed slide mounted for reciprocation on said pintle, a tongue on said slide bent in a direction away from said door leaf and engaging said cam edge, a bend near the end of said cam edge, and a second cam edge spaced from said first cam edge substantially at said bend a distance substantially equal to the width of said tongue whereby said cylinder may be continuously rotated by said tongue until said tongue reaches said bend, and after said tongue has passed said bend, and said tongue is prevented from rotating said cylinder while said tongue is at said bend.

11. In a combined door hinge and check, a hinge cylinder, a cam forming part of said cylinder, a hinge pintle rotatably carrying said cylinder and said cam and extending beyond the ends of said cylinder and a bent tongue coacting with said cam and slidable only on the end of said pintle for rotating said cylinder. 7 12. In a combined door hinge and check, a door leaf, a stationary jamb lea-f, stationary hinge cylinders on said jamb leaf, rotatable hinge cylinders on said door leaf. a

hinge pintle secured to said jamb leaf cylinders and rotatably carrying said door leaf cylinders, a squared portion at the extremity of saidpintle, a slide having a square opening therein mounted for reciprocation on said squared portion, a spring pressing said slide toward said cylinders, a cam edge having a bend thereon 011 said rotatable cylinder, a tongue on said slide bent away from said door leaf and adapted to engage said cam edge, and a second cam edge spaced from said first cam edge near said bend a distance substantially equal to the Width of said tongue for engaging said tongue and 10 temporarily halting the rotative movement of said cylinder when said tongue is about to pass said bend.

ABRAHAM M. COHEN. 

